/* roulang page: index */
:root {
            --primary: #16233b;
            --primary-light: #243b5e;
            --accent: #c9a962;
            --accent-light: #e0c88a;
            --accent-dark: #a8863f;
            --bg-body: #f4f6fa;
            --bg-surface: #ffffff;
            --bg-deep: #101a2c;
            --text-main: #1a2233;
            --text-weak: #6b7a90;
            --text-invert: #f5f7fa;
            --border: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 10px rgba(22, 35, 59, 0.07);
            --shadow-md: 0 8px 30px rgba(22, 35, 59, 0.11);
            --shadow-lg: 0 16px 48px rgba(22, 35, 59, 0.16);
            --space-section: 96px;
            --space-section-sm: 64px;
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease, border-color .25s ease, background .25s ease;
        }

        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--space-section) 0;
        }

        .section-sm {
            padding: var(--space-section-sm) 0;
        }

        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-header .eyebrow {
            display: inline-block;
            font-size: .875rem;
            font-weight: 600;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--accent-dark);
            background: rgba(201, 169, 98, .12);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: clamp(1.7rem, 3.2vw, 2.4rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .section-header p {
            color: var(--text-weak);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: .95rem;
            transition: all .3s ease;
            border: 2px solid transparent;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 169, 98, .3);
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-invert);
            border-color: rgba(255, 255, 255, .45);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .12);
            border-color: rgba(255, 255, 255, .8);
            transform: translateY(-2px);
        }

        .btn-light {
            background: var(--text-invert);
            color: var(--primary);
            border-color: var(--text-invert);
        }

        .btn-light:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(201, 169, 98, .5);
            outline-offset: 2px;
        }

        .badge {
            display: inline-block;
            font-size: .78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            background: rgba(201, 169, 98, .14);
            color: var(--accent-dark);
        }

        .badge-solid {
            background: var(--accent);
            color: var(--primary);
        }

        .badge-blue {
            background: rgba(36, 59, 94, .1);
            color: var(--primary-light);
        }

        .badge-green {
            background: rgba(22, 163, 74, .1);
            color: #15803d;
        }

        .card {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .card-img {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            aspect-ratio: 16 / 10;
        }

        .card-img img {
            width: 100%;
            height: 100%;
            transition: transform .4s ease;
        }

        .card:hover .card-img img {
            transform: scale(1.04);
        }

        .card-body {
            padding: 24px;
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--text-main);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-text {
            color: var(--text-weak);
            font-size: .92rem;
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .82rem;
            color: var(--text-weak);
        }

        .card-meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }

        /* Header & Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(16, 26, 44, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            padding: 0 24px;
            max-width: 1280px;
            margin: 0 auto;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-invert);
            letter-spacing: .02em;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--primary);
            font-weight: 800;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 30px;
            font-size: .92rem;
            font-weight: 500;
            color: rgba(255, 255, 255, .78);
            transition: all .25s ease;
            position: relative;
        }

        .nav-link:hover {
            color: var(--text-invert);
            background: rgba(255, 255, 255, .08);
        }

        .nav-link.active {
            color: var(--primary);
            background: var(--accent);
            font-weight: 600;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .header-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .header-search input {
            width: 180px;
            height: 38px;
            padding: 0 14px 0 36px;
            border-radius: 30px;
            border: 1px solid rgba(255, 255, 255, .18);
            background: rgba(255, 255, 255, .06);
            color: var(--text-invert);
            font-size: .85rem;
            transition: all .3s ease;
        }

        .header-search input::placeholder {
            color: rgba(255, 255, 255, .5);
        }

        .header-search input:focus {
            background: rgba(255, 255, 255, .12);
            border-color: var(--accent);
            width: 220px;
        }

        .header-search i {
            position: absolute;
            left: 13px;
            color: rgba(255, 255, 255, .5);
            font-size: .85rem;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            color: var(--text-invert);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
        }

        /* Hero */
        .hero {
            position: relative;
            background: var(--bg-deep);
            padding: 110px 0 80px;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 75% 20%, rgba(201, 169, 98, .16) 0%, transparent 55%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            padding-right: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 169, 98, .15);
            color: var(--accent);
            font-size: .85rem;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 24px;
            border: 1px solid rgba(201, 169, 98, .25);
        }

        .hero-badge i {
            font-size: .7rem;
        }

        .hero h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-invert);
            letter-spacing: .02em;
            margin-bottom: 16px;
        }

        .hero h1 .highlight {
            color: var(--accent);
            position: relative;
        }

        .hero-desc {
            font-size: 1.08rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .72);
            max-width: 520px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 36px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .1);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, .65);
            font-size: .88rem;
        }

        .hero-meta span i {
            color: var(--accent);
            font-size: .9rem;
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 255, 255, .08);
        }

        .hero-visual-card {
            position: absolute;
            bottom: -24px;
            left: -30px;
            background: rgba(255, 255, 255, .12);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 16px;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            box-shadow: var(--shadow-lg);
            color: var(--text-invert);
        }

        .hero-visual-card .icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .hero-visual-card .text {
            font-size: .8rem;
            line-height: 1.4;
            color: rgba(255, 255, 255, .8);
        }

        .hero-visual-card .text strong {
            display: block;
            font-size: .95rem;
            color: var(--text-invert);
            margin-bottom: 2px;
        }

        /* Features */
        .features {
            background: var(--bg-surface);
            padding: var(--space-section) 0;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .feature-card {
            text-align: center;
            padding: 36px 24px;
            border-radius: var(--radius-md);
            background: var(--bg-surface);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 169, 98, .4);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, rgba(201, 169, 98, .18), rgba(201, 169, 98, .08));
            color: var(--accent-dark);
        }

        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: .88rem;
            color: var(--text-weak);
            line-height: 1.65;
        }

        /* Categories */
        .categories {
            background: var(--bg-body);
            padding: var(--space-section) 0;
        }

        .categories-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            display: block;
            min-height: 260px;
            border: 1px solid var(--border);
            background: var(--bg-surface);
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .category-card .cat-img {
            width: 100%;
            height: 200px;
            overflow: hidden;
        }

        .category-card .cat-img img {
            width: 100%;
            height: 100%;
            transition: transform .4s ease;
        }

        .category-card:hover .cat-img img {
            transform: scale(1.05);
        }

        .category-card .cat-body {
            padding: 24px;
        }

        .category-card .cat-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .category-card .cat-body p {
            color: var(--text-weak);
            font-size: .92rem;
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .category-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .9rem;
            font-weight: 600;
            color: var(--accent-dark);
        }

        .category-card .cat-link i {
            font-size: .8rem;
            transition: transform .3s ease;
        }

        .category-card:hover .cat-link i {
            transform: translateX(4px);
        }

        /* Latest News */
        .latest {
            background: var(--bg-surface);
            padding: var(--space-section) 0;
        }

        .latest-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .news-card .news-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .news-card .news-img img {
            width: 100%;
            height: 100%;
            transition: transform .4s ease;
        }

        .news-card:hover .news-img img {
            transform: scale(1.04);
        }

        .news-card .news-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .news-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .news-card .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-main);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .25s ease;
        }

        .news-card .news-title:hover {
            color: var(--accent-dark);
        }

        .news-card .news-summary {
            font-size: .88rem;
            color: var(--text-weak);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: .8rem;
            color: var(--text-weak);
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .news-card .news-meta i {
            color: var(--accent-dark);
            font-size: .8rem;
        }

        .latest-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-weak);
            background: var(--bg-body);
            border-radius: var(--radius-md);
            font-size: 1rem;
        }

        .latest-more {
            text-align: center;
            margin-top: 44px;
        }

        /* Stats */
        .stats {
            position: relative;
            background: linear-gradient(135deg, var(--bg-deep) 0%, var(--primary) 100%);
            padding: var(--space-section) 0;
            color: var(--text-invert);
            overflow: hidden;
        }

        .stats::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: .25;
            pointer-events: none;
        }

        .stats .section-header h2 {
            color: var(--text-invert);
        }

        .stats .section-header p {
            color: rgba(255, 255, 255, .65);
        }

        .stats .section-header .eyebrow {
            background: rgba(201, 169, 98, .2);
            color: var(--accent-light);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: center;
            padding: 30px 18px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            backdrop-filter: blur(6px);
            transition: all .3s ease;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 6px;
            line-height: 1.2;
        }

        .stat-label {
            font-size: .9rem;
            color: rgba(255, 255, 255, .7);
        }

        /* Process */
        .process {
            background: var(--bg-body);
            padding: var(--space-section) 0;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
        }

        .process-grid::before {
            content: '';
            position: absolute;
            top: 42px;
            left: 8%;
            right: 8%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), rgba(201, 169, 98, .2));
            border-radius: 2px;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-num {
            width: 84px;
            height: 84px;
            border-radius: 50%;
            background: var(--bg-surface);
            border: 3px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-dark);
            margin: 0 auto 20px;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
        }

        .step-num:hover {
            background: var(--accent);
            color: var(--primary);
            transform: scale(1.05);
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: .85rem;
            color: var(--text-weak);
            line-height: 1.6;
            max-width: 200px;
            margin: 0 auto;
        }

        /* FAQ */
        .faq {
            background: var(--bg-surface);
            padding: var(--space-section) 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all .3s ease;
        }

        .faq-item:hover {
            border-color: rgba(201, 169, 98, .4);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 22px 28px;
            font-size: 1rem;
            font-weight: 600;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            gap: 16px;
            background: transparent;
            border: none;
            color: var(--text-main);
            text-align: left;
            width: 100%;
            transition: color .25s ease;
        }

        .faq-question:hover {
            color: var(--accent-dark);
        }

        .faq-question .icon {
            font-size: .9rem;
            color: var(--accent-dark);
            flex-shrink: 0;
            transition: transform .3s ease;
        }

        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease, padding .3s ease;
            padding: 0 28px;
            font-size: .93rem;
            color: var(--text-weak);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 28px 22px;
        }

        /* CTA */
        .cta-section {
            position: relative;
            padding: var(--space-section) 0;
            background: linear-gradient(135deg, var(--primary-light), var(--bg-deep));
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: .3;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            color: var(--text-invert);
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            margin-bottom: 14px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, .68);
            font-size: 1.02rem;
            margin-bottom: 30px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, .7);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: .92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, .55);
            max-width: 320px;
        }

        .footer-col h4 {
            color: var(--text-invert);
            font-size: .95rem;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: .9rem;
            color: rgba(255, 255, 255, .55);
            transition: color .25s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 22px 0;
            font-size: .82rem;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr .8fr;
                gap: 40px;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .latest-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px 20px;
            }

            .process-grid::before {
                display: none;
            }

            .hero-visual-card {
                left: -10px;
                bottom: -18px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 72px;
                --space-section-sm: 48px;
            }

            .header-cta .header-search {
                display: none;
            }

            .main-nav {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg-deep);
                padding: 16px 24px 24px;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                transform: translateY(-150%);
                transition: transform .35s ease;
                z-index: 99;
                align-items: stretch;
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .nav-link {
                padding: 14px 20px;
                border-radius: 10px;
            }

            .menu-toggle {
                display: inline-flex;
            }

            .hero {
                padding: 80px 0 64px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }

            .hero-content {
                padding-right: 0;
            }

            .hero-visual-card {
                left: 12px;
                bottom: -20px;
            }

            .categories-grid {
                grid-template-columns: 1fr;
            }

            .latest-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .container {
                padding: 0 18px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --space-section: 56px;
            }

            .header-inner {
                padding: 0 14px;
                height: 60px;
            }

            .main-nav {
                top: 60px;
            }

            .logo {
                font-size: 1.05rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: .85rem;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .hero-desc {
                font-size: .95rem;
            }

            .hero-actions .btn {
                padding: 10px 22px;
                font-size: .9rem;
            }

            .hero-meta {
                gap: 12px;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .stat-num {
                font-size: 1.8rem;
            }

            .process-grid {
                grid-template-columns: 1fr;
            }

            .section-header h2 {
                font-size: 1.5rem;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: .93rem;
            }

            .faq-answer {
                padding: 0 20px;
            }

            .faq-item.open .faq-answer {
                padding: 0 20px 18px;
            }
        }

/* roulang page: category1 */
:root {
    --primary: #0c8ce9;
    --primary-dark: #006bbd;
    --primary-soft: #e6f4ff;
    --accent: #f59e0b;
    --accent-soft: #fef3c7;
    --bg: #f4f9fd;
    --surface: #ffffff;
    --deep: #0b1e33;
    --deep-soft: #16324f;
    --text: #123456;
    --text-weak: #5a7690;
    --border: #dae7f1;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow: 0 8px 30px rgba(16, 82, 140, 0.08);
    --shadow-hover: 0 14px 36px rgba(16, 82, 140, 0.16);
    --header-h: 74px;
    --space-section: 88px;
    --font-base: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body { font-family: var(--font-base); color: var(--text); background: var(--bg); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { width: min(1200px, 92%); margin: 0 auto; }

.logo { display: flex; align-items: center; gap: 10px; font-size: 1.3rem; font-weight: 800; letter-spacing: .5px; color: var(--primary-dark); }
.logo-icon { width: 42px; height: 42px; border-radius: 14px; background: linear-gradient(135deg, var(--primary), #4db8ff); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.2rem; box-shadow: 0 6px 16px rgba(12, 140, 233, .24); }
.logo-text { white-space: nowrap; }

.site-header { position: sticky; top: 0; z-index: 999; background: rgba(255, 255, 255, 0.86); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(219, 233, 244, .7); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link { display: flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 999px; font-size: .95rem; font-weight: 500; color: var(--text-weak); transition: all .28s ease; white-space: nowrap; }
.nav-link i { font-size: .9rem; opacity: .8; }
.nav-link:hover { color: var(--primary); background: var(--primary-soft); }
.nav-link.active { color: #fff; background: linear-gradient(135deg, var(--primary), #38a8f5); box-shadow: 0 6px 18px rgba(12, 140, 233, .28); }
.nav-toggle { display: none; width: 44px; height: 44px; border: none; border-radius: 12px; background: var(--primary-soft); color: var(--primary); font-size: 1.15rem; cursor: pointer; align-items: center; justify-content: center; transition: all .24s ease; }
.nav-toggle:hover { background: var(--primary); color: #fff; }

.page-hero { position: relative; padding: 100px 0 90px; background: linear-gradient(135deg, rgba(6, 52, 96, .92), rgba(9, 98, 168, .78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; color: #fff; overflow: hidden; }
.page-hero::after { content: ''; position: absolute; right: -120px; top: -120px; width: 380px; height: 380px; border-radius: 50%; background: rgba(245, 158, 11, .12); filter: blur(60px); }
.hero-content { position: relative; z-index: 2; max-width: 680px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 18px; border-radius: 999px; background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .28); font-size: .85rem; font-weight: 500; letter-spacing: .5px; margin-bottom: 22px; backdrop-filter: blur(6px); }
.hero-badge i { color: #ffd166; }
.hero-content h1 { font-size: clamp(2rem, 4.4vw, 3.2rem); line-height: 1.2; font-weight: 800; letter-spacing: 1px; margin-bottom: 18px; }
.hero-content p { font-size: 1.08rem; line-height: 1.8; color: rgba(255, 255, 255, .9); margin-bottom: 34px; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 30px; border-radius: 999px; font-size: .98rem; font-weight: 600; border: none; cursor: pointer; transition: transform .25s ease, box-shadow .25s ease, background .25s ease; }
.btn i { font-size: 1rem; }
.btn-primary { background: linear-gradient(135deg, var(--primary), #36a6f4); color: #fff; box-shadow: 0 8px 24px rgba(12, 140, 233, .3); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(12, 140, 233, .4); }
.btn-ghost { background: rgba(255, 255, 255, .14); color: #fff; border: 1px solid rgba(255, 255, 255, .38); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255, 255, 255, .25); transform: translateY(-3px); }
.btn-light { background: #fff; color: var(--primary-dark); box-shadow: 0 8px 26px rgba(0, 0, 0, .14); }
.btn-light:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(0, 0, 0, .2); }

.section { padding: var(--space-section) 0; }
.section-alt { background: var(--surface); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.section-tag { display: inline-block; padding: 6px 18px; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); font-size: .82rem; font-weight: 600; letter-spacing: .5px; margin-bottom: 14px; }
.section-head h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); font-weight: 800; color: var(--text); line-height: 1.3; margin-bottom: 12px; }
.section-head p { color: var(--text-weak); font-size: 1rem; }

.entry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.entry-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px 30px; transition: all .3s ease; position: relative; overflow: hidden; }
.entry-card::before { content: ''; position: absolute; left: 0; top: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--primary), #59c3ff); opacity: 0; transition: opacity .3s ease; }
.entry-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
.entry-card:hover::before { opacity: 1; }
.entry-icon { width: 60px; height: 60px; border-radius: 18px; background: linear-gradient(135deg, var(--primary), #4db8ff); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.5rem; margin-bottom: 22px; box-shadow: 0 8px 18px rgba(12, 140, 233, .22); }
.entry-card:nth-child(2) .entry-icon { background: linear-gradient(135deg, var(--accent), #ffb84d); box-shadow: 0 8px 18px rgba(245, 158, 11, .22); }
.entry-card:nth-child(3) .entry-icon { background: linear-gradient(135deg, #22c55e, #4ade80); box-shadow: 0 8px 18px rgba(34, 197, 94, .22); }
.entry-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.entry-card p { font-size: .92rem; color: var(--text-weak); line-height: 1.7; margin-bottom: 18px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-weight: 600; font-size: .92rem; transition: gap .24s ease; }
.text-link:hover { gap: 12px; }

.steps-section { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; counter-reset: step; }
.step-item { position: relative; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 26px 30px; transition: all .3s ease; }
.step-item:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(12, 140, 233, .28); }
.step-num { display: inline-flex; width: 44px; height: 44px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); font-size: 1rem; font-weight: 800; align-items: center; justify-content: center; margin-bottom: 20px; transition: all .3s ease; }
.step-item:hover .step-num { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(12, 140, 233, .3); }
.step-item h4 { font-size: 1.08rem; font-weight: 700; margin-bottom: 10px; }
.step-item p { font-size: .9rem; color: var(--text-weak); line-height: 1.65; }

.safety-section { background: var(--deep); color: #d2e8f8; padding: var(--space-section) 0; position: relative; overflow: hidden; }
.safety-section::before { content: ''; position: absolute; left: 50%; top: -80px; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(12, 140, 233, .18), transparent 65%); transform: translateX(-50%); }
.safety-inner { position: relative; z-index: 2; }
.safety-head { text-align: center; margin-bottom: 48px; }
.safety-head .safety-icon { width: 68px; height: 68px; border-radius: 22px; background: linear-gradient(135deg, #1ca2f0, #0b6bbd); display: flex; align-items: center; justify-content: center; font-size: 1.6rem; color: #fff; margin: 0 auto 18px; box-shadow: 0 10px 30px rgba(12, 140, 233, .3); }
.safety-head h2 { color: #fff; font-size: clamp(1.6rem, 2.8vw, 2.1rem); font-weight: 800; margin-bottom: 12px; }
.safety-head p { color: rgba(210, 232, 248, .7); font-size: 1rem; }
.safety-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.safety-item { background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1); border-radius: var(--radius); padding: 28px 24px; transition: all .3s ease; backdrop-filter: blur(4px); }
.safety-item:hover { background: rgba(255, 255, 255, .1); transform: translateY(-4px); }
.safety-item i { color: #4ade80; font-size: 1.3rem; margin-bottom: 16px; display: block; }
.safety-item h4 { color: #fff; font-size: 1.02rem; font-weight: 700; margin-bottom: 10px; }
.safety-item p { font-size: .88rem; color: rgba(210, 232, 248, .75); line-height: 1.65; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.article-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all .3s ease; display: flex; flex-direction: column; }
.article-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.article-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.article-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.article-card:hover .article-cover img { transform: scale(1.06); }
.article-body { padding: 26px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.badge { align-self: flex-start; display: inline-block; padding: 5px 14px; border-radius: 999px; background: var(--accent-soft); color: #b45309; font-size: .78rem; font-weight: 600; margin-bottom: 14px; }
.article-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 10px; line-height: 1.4; }
.article-body p { font-size: .9rem; color: var(--text-weak); line-height: 1.65; margin-bottom: 20px; flex: 1; }
.read-more { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-weight: 600; font-size: .9rem; transition: gap .24s ease; }
.read-more:hover { gap: 12px; }

.faq-section { background: var(--surface); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); transition: all .28s ease; }
.faq-item.open { border-color: rgba(12, 140, 233, .4); box-shadow: var(--shadow); background: #fff; }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; padding: 20px 24px; background: none; border: none; cursor: pointer; font-size: 1rem; font-weight: 600; color: var(--text); text-align: left; transition: color .24s ease; }
.faq-question i { color: var(--text-weak); font-size: .85rem; transition: transform .3s ease; flex-shrink: 0; }
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
.faq-question:hover { color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-answer-inner { padding: 0 24px 20px; font-size: .93rem; color: var(--text-weak); line-height: 1.75; border-top: 1px solid transparent; }
.faq-item.open .faq-answer-inner { border-top-color: var(--border); padding-top: 16px; }

.cta-section { padding: var(--space-section) 0; }
.cta-box { background: linear-gradient(135deg, var(--primary), #269df0 55%, #4db8ff); border-radius: 28px; padding: 56px 48px; text-align: center; color: #fff; position: relative; overflow: hidden; box-shadow: 0 20px 50px rgba(12, 140, 233, .3); }
.cta-box::before { content: ''; position: absolute; right: -60px; top: -60px; width: 240px; height: 240px; border-radius: 50%; background: rgba(255, 255, 255, .14); }
.cta-box::after { content: ''; position: absolute; left: -40px; bottom: -80px; width: 200px; height: 200px; border-radius: 50%; background: rgba(245, 158, 11, .2); }
.cta-box h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 800; margin-bottom: 14px; position: relative; z-index: 2; }
.cta-box p { color: rgba(255, 255, 255, .9); font-size: 1rem; margin-bottom: 30px; position: relative; z-index: 2; }
.cta-box .btn { position: relative; z-index: 2; }

.site-footer { background: var(--deep); color: rgba(210, 232, 248, .7); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 44px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer-brand .logo { color: #fff; margin-bottom: 18px; }
.footer-brand .logo-icon { background: linear-gradient(135deg, #1ca2f0, #0b6bbd); }
.footer-brand p { font-size: .9rem; max-width: 380px; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 20px; letter-spacing: .5px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { font-size: .92rem; color: rgba(210, 232, 248, .7); transition: all .24s ease; display: inline-flex; align-items: center; gap: 6px; }
.footer-col ul a:hover { color: var(--primary); transform: translateX(4px); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 26px 0; font-size: .85rem; color: rgba(210, 232, 248, .5); }

@media (max-width: 1024px) {
    :root { --space-section: 68px; }
    .entry-grid, .article-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid, .safety-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root { --space-section: 56px; }
    .site-header { backdrop-filter: blur(12px); }
    .nav-toggle { display: flex; }
    .main-nav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 6px; background: rgba(255, 255, 255, .98); padding: 18px 20px 22px; border-bottom: 1px solid var(--border); box-shadow: 0 24px 40px rgba(0, 0, 0, .14); transform: translateY(-12px); opacity: 0; visibility: hidden; pointer-events: none; transition: all .3s ease; }
    .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; pointer-events: auto; }
    .nav-link { padding: 13px 18px; justify-content: flex-start; border-radius: 12px; }
    .nav-link i { width: 22px; text-align: center; }
    .page-hero { padding: 76px 0 64px; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .entry-grid, .article-grid, .steps-grid, .safety-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { justify-content: center; text-align: center; }
    .cta-box { padding: 42px 24px; }
}

@media (max-width: 520px) {
    :root { --space-section: 48px; --header-h: 64px; }
    .logo-text { font-size: 1.08rem; }
    .logo-icon { width: 36px; height: 36px; font-size: 1rem; border-radius: 12px; }
    .section-head h2 { font-size: 1.4rem; }
    .entry-card { padding: 28px 22px; }
    .faq-question { padding: 16px 18px; font-size: .95rem; }
    .cta-box { padding: 34px 18px; }
    .cta-box h2 { font-size: 1.3rem; }
    .step-item { padding: 26px 20px; }
}

/* roulang page: article */
:root {
            --primary: #0f766e;
            --primary-dark: #115e59;
            --primary-light: #14b8a6;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --bg: #f8fafc;
            --surface: #ffffff;
            --text: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.09);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.14);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --space-section: 90px;
            --container-width: 1200px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button, input {
            font-family: inherit;
        }

        .progress-bar {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            width: 0%;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            z-index: 9999;
            transition: width 0.1s ease-out;
            border-radius: 0 3px 3px 0;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 24px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 12px;
            font-size: 1.05rem;
            box-shadow: var(--shadow-sm);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 24px;
            flex: 1;
            justify-content: flex-end;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 10px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .nav-link i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .nav-link:hover {
            background: rgba(15, 118, 110, 0.08);
            color: var(--primary);
        }

        .nav-link.active {
            background: var(--primary);
            color: #fff;
        }

        .nav-link.active i {
            color: #fff;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 4px 4px 4px 16px;
            transition: var(--transition);
        }

        .header-search:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
        }

        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            width: 150px;
            font-size: 0.9rem;
            color: var(--text);
        }

        .header-search input::placeholder {
            color: var(--text-light);
        }

        .header-search button {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: none;
            background: var(--primary);
            color: #fff;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .header-search button:hover {
            background: var(--primary-dark);
            transform: scale(1.06);
        }

        .menu-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--surface);
            color: var(--text);
            font-size: 1.1rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .menu-toggle.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .page-banner {
            background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(15, 118, 110, 0.84)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 34px 0;
            position: relative;
            overflow: hidden;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.92rem;
            position: relative;
            z-index: 1;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .sep {
            font-size: 0.7rem;
            opacity: 0.7;
        }

        .breadcrumb .current {
            color: #fff;
            font-weight: 600;
        }

        .article-section {
            padding: 70px 0 56px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 40px;
        }

        .main-content {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 44px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.83rem;
            font-weight: 600;
        }

        .badge-primary {
            background: rgba(15, 118, 110, 0.1);
            color: var(--primary);
        }

        .badge-light {
            background: var(--bg);
            color: var(--text-muted);
            border: 1px solid var(--border);
        }

        .article-head {
            margin-bottom: 26px;
        }

        .article-title {
            font-size: 2rem;
            line-height: 1.35;
            font-weight: 800;
            color: var(--text);
            margin: 16px 0 16px;
            letter-spacing: -0.01em;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding-top: 16px;
            border-top: 1px dashed var(--border);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .article-meta i {
            color: var(--primary-light);
        }

        .article-cover {
            margin: 28px 0 32px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .article-cover img {
            width: 100%;
            height: auto;
            display: block;
        }

        .article-body {
            font-size: 1.02rem;
            line-height: 1.9;
            color: #334155;
        }

        .article-body p {
            margin-bottom: 1.2em;
        }

        .article-body > p:first-of-type::first-letter {
            font-size: 2.6em;
            font-weight: 800;
            color: var(--primary);
            float: left;
            line-height: 1;
            padding-right: 10px;
            padding-top: 4px;
        }

        .article-body h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text);
            margin: 1.6em 0 0.6em;
            padding-left: 14px;
            border-left: 4px solid var(--primary-light);
        }

        .article-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            margin: 1.3em 0 0.5em;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.4em 1.4em;
        }

        .article-body li {
            margin-bottom: 0.5em;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body blockquote {
            background: var(--bg);
            border-left: 4px solid var(--accent);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 1.5em 0;
            color: var(--text-muted);
        }

        .article-body img {
            max-width: 100%;
            border-radius: var(--radius-md);
            margin: 1.2em 0;
        }

        .article-body code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.9em;
            color: var(--primary-dark);
        }

        .article-footer {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            padding: 7px 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            color: var(--text-muted);
            font-weight: 500;
            transition: var(--transition);
        }

        .tag:hover {
            border-color: var(--primary-light);
            color: var(--primary);
        }

        .tag i {
            color: var(--primary);
            font-size: 0.8rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-light {
            background: #fff;
            color: var(--primary-dark);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 0.87rem;
            border-radius: 10px;
        }

        .not-found-panel {
            text-align: center;
            padding: 70px 30px;
        }

        .not-found-panel > i {
            font-size: 3.5rem;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .not-found-panel h1 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
        }

        .not-found-panel p {
            color: var(--text-muted);
            max-width: 420px;
            margin: 0 auto 28px;
        }

        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 94px;
            align-self: start;
        }

        .side-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 26px;
            transition: var(--transition);
        }

        .side-card:hover {
            box-shadow: var(--shadow-md);
        }

        .side-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .side-card-title i {
            color: var(--primary);
        }

        .side-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .side-list li + li {
            border-top: 1px dashed var(--border);
        }

        .side-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 8px;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .side-list a:hover {
            color: var(--primary);
            padding-left: 14px;
        }

        .side-list a i {
            color: var(--primary);
            font-size: 0.85rem;
        }

        .side-cover {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
        }

        .side-cover:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .side-cover img {
            width: 92px;
            height: 68px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
        }

        .side-cover-body h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .side-cover-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .text-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            text-decoration: none;
            transition: var(--transition);
        }

        .text-link:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        .side-card-accent {
            background: linear-gradient(135deg, rgba(15, 118, 110, 0.04), rgba(20, 184, 166, 0.08));
            border-color: rgba(20, 184, 166, 0.25);
        }

        .side-card-accent p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
            margin: 0;
        }

        .related-section {
            padding: var(--space-section) 0;
        }

        .section-head {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-head .eyebrow {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .related-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .related-card img {
            width: 100%;
            height: 210px;
            object-fit: cover;
            display: block;
        }

        .related-card-body {
            padding: 28px;
        }

        .related-card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin: 14px 0 10px;
        }

        .related-card-body p {
            color: var(--text-muted);
            font-size: 0.93rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .faq-section {
            padding: var(--space-section) 0;
            background: var(--bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .faq-item h3 {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .faq-item h3 i {
            color: var(--accent);
            font-size: 1.15rem;
            margin-top: 2px;
        }

        .faq-item p {
            color: var(--text-muted);
            font-size: 0.93rem;
            line-height: 1.8;
            margin: 0;
        }

        .cta-section {
            padding: var(--space-section) 0;
        }

        .cta-panel {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 72px 50px;
            text-align: center;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82), rgba(15, 118, 110, 0.74));
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.1rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.88);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 46px;
            padding-bottom: 46px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            background: linear-gradient(135deg, #0f766e, #14b8a6);
        }

        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.8;
            margin-top: 16px;
            max-width: 380px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col li {
            margin-bottom: 12px;
        }

        .footer-col li a {
            color: #94a3b8;
            font-size: 0.92rem;
            transition: var(--transition);
        }

        .footer-col li a:hover {
            color: #22d3ee;
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            font-size: 0.86rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            color: #64748b;
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }

            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .side-card-accent {
                grid-column: span 2;
            }

            .faq-grid {
                grid-template-columns: 1fr 1fr;
            }

            .nav-wrap {
                gap: 16px;
            }

            .nav-link {
                padding: 10px 12px;
                font-size: 0.9rem;
            }

            .header-search input {
                width: 110px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 64px;
            }

            .menu-toggle {
                display: inline-flex;
            }

            .nav-wrap {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--surface);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                flex-direction: column;
                padding: 20px 24px;
                gap: 16px;
                align-items: stretch;
            }

            .nav-wrap.open {
                display: flex;
            }

            .main-nav {
                flex-direction: column;
                gap: 4px;
                align-items: stretch;
            }

            .nav-link {
                justify-content: flex-start;
            }

            .header-search {
                width: 100%;
            }

            .header-search input {
                flex: 1;
                width: auto;
            }

            .header-inner {
                height: 66px;
            }

            .article-section {
                padding: 40px 0 32px;
            }

            .main-content {
                padding: 28px 22px;
            }

            .article-title {
                font-size: 1.5rem;
            }

            .page-banner {
                padding: 24px 0;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .faq-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 34px;
            }

            .cta-panel {
                padding: 52px 24px;
            }

            .cta-content h2 {
                font-size: 1.6rem;
            }

            .sidebar {
                grid-template-columns: 1fr;
            }

            .side-card-accent {
                grid-column: span 1;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .logo {
                font-size: 1.12rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 0.9rem;
            }

            .article-meta {
                flex-direction: column;
                gap: 10px;
            }

            .article-footer {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-card img {
                height: 180px;
            }

            .related-card-body {
                padding: 22px;
            }

            .faq-item {
                padding: 22px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .article-body {
                font-size: 1rem;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #0d2b4e;
  --primary-light: #143e6b;
  --accent: #0ea5e9;
  --accent-soft: #e0f2fe;
  --accent-2: #f59e0b;
  --bg: #f5f8fc;
  --white: #ffffff;
  --text: #16243a;
  --text-light: #56697f;
  --border: #e3eaf2;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(13, 43, 78, 0.06);
  --shadow-md: 0 8px 24px rgba(13, 43, 78, 0.08);
  --shadow-lg: 0 16px 40px rgba(13, 43, 78, 0.12);
  --transition: all 0.3s ease;
  --container: 1200px;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
a { text-decoration: none; color: inherit; }
button, input { font-family: inherit; outline: none; border: none; background: none; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-eyebrow { display: inline-flex; align-items: center; gap: 8px; background: var(--accent-soft); color: #0369a1; font-size: .85rem; font-weight: 700; padding: 6px 16px; border-radius: 40px; margin-bottom: 16px; letter-spacing: .5px; }
.section-title { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800; line-height: 1.25; color: var(--primary); margin-bottom: 14px; }
.section-desc { color: var(--text-light); font-size: 1.02rem; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 13px 30px; border-radius: 50px; font-weight: 700; font-size: .98rem; transition: var(--transition); cursor: pointer; border: 2px solid transparent; }
.btn i { font-size: 1rem; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; box-shadow: 0 8px 24px rgba(14, 165, 233, .25); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(14, 165, 233, .32); }
.btn-outline-light { border-color: rgba(255,255,255,.75); color: #fff; background: transparent; }
.btn-outline-light:hover { background: rgba(255,255,255,.14); border-color: #fff; transform: translateY(-3px); }
.btn-light { background: #fff; color: var(--primary); box-shadow: var(--shadow-md); }
.btn-light:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.18rem; color: var(--primary); white-space: nowrap; }
.logo-icon { width: 42px; height: 42px; flex: 0 0 42px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; border-radius: 13px; font-size: 1.1rem; box-shadow: 0 6px 16px rgba(13, 43, 78, .22); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link { display: flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 12px; color: var(--text-light); font-weight: 600; font-size: .95rem; transition: var(--transition); }
.nav-link i { font-size: .9rem; }
.nav-link:hover { color: var(--primary); background: rgba(13, 43, 78, .04); }
.nav-link.active { color: #fff; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 6px 18px rgba(13, 43, 78, .2); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-btn { padding: 10px 22px; border-radius: 40px; background: var(--accent-soft); color: #0369a1; font-weight: 700; font-size: .9rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.header-btn:hover { background: var(--accent); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(14,165,233,.24); }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--border); align-items: center; justify-content: center; font-size: 1.2rem; color: var(--primary); cursor: pointer; background: #fff; }

.page-hero { position: relative; padding: 96px 0 80px; background: linear-gradient(135deg, rgba(13,43,78,.94) 0%, rgba(13,43,78,.82) 55%, rgba(14,165,233,.68) 100%), url('/assets/images/backpic/back-2.png') center / cover no-repeat; color: #fff; overflow: hidden; }
.page-hero::after { content: ''; position: absolute; right: -12%; top: -20%; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(14,165,233,.25), transparent 65%); pointer-events: none; }
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.hero-copy .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.3); padding: 7px 18px; border-radius: 40px; font-size: .85rem; font-weight: 600; margin-bottom: 22px; letter-spacing: .5px; }
.hero-copy h1 { font-size: clamp(2.1rem, 4vw, 3.3rem); font-weight: 900; line-height: 1.2; margin-bottom: 18px; letter-spacing: 1px; }
.hero-copy p { font-size: 1.08rem; color: rgba(255,255,255,.86); max-width: 520px; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-stats { display: flex; gap: 18px; margin-top: 48px; flex-wrap: wrap; }
.hero-stat { padding: 18px 26px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); border-radius: 16px; backdrop-filter: blur(8px); text-align: center; min-width: 130px; }
.hero-stat strong { display: block; font-size: 1.9rem; font-weight: 900; color: #fff; line-height: 1.2; }
.hero-stat span { font-size: .85rem; color: rgba(255,255,255,.76); }
.hero-card { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); border-radius: 24px; padding: 28px; backdrop-filter: blur(12px); box-shadow: 0 24px 60px rgba(0,0,0,.2); }
.hero-card-title { font-size: 1.1rem; font-weight: 800; margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.hero-card-list li { display: flex; align-items: center; gap: 12px; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.9); font-size: .95rem; }
.hero-card-list li:last-child { border-bottom: none; }
.hero-card-list i { color: #7dd3fc; font-size: 1rem; width: 20px; text-align: center; }

.guide-toc { padding: 80px 0 30px; }
.toc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.toc-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px 24px; text-align: center; transition: var(--transition); position: relative; overflow: hidden; }
.toc-card::before { content: ''; position: absolute; left: 0; top: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); opacity: 0; transition: var(--transition); }
.toc-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.toc-card:hover::before { opacity: 1; }
.toc-icon { width: 64px; height: 64px; margin: 0 auto 18px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; border-radius: 18px; background: var(--accent-soft); color: #0369a1; transition: var(--transition); }
.toc-card:hover .toc-icon { background: var(--primary); color: #fff; transform: rotate(-6deg) scale(1.05); }
.toc-card h3 { font-size: 1.08rem; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.toc-card p { font-size: .9rem; color: var(--text-light); margin-bottom: 16px; }
.toc-link { font-size: .9rem; font-weight: 700; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.toc-link i { font-size: .8rem; }
.toc-card:hover .toc-link { color: var(--primary); gap: 10px; }

.steps-section { padding: 60px 0 80px; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.step-card { background: var(--white); border-radius: var(--radius); padding: 32px 26px; border: 1px solid var(--border); transition: var(--transition); position: relative; }
.step-card:hover { box-shadow: var(--shadow-lg); border-color: rgba(14,165,233,.3); transform: translateY(-6px); }
.step-num { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 14px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-weight: 900; font-size: 1.15rem; margin-bottom: 18px; box-shadow: 0 8px 20px rgba(14,165,233,.22); }
.step-card h3 { font-size: 1.14rem; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.step-card p { color: var(--text-light); font-size: .94rem; }

.features-section { background: linear-gradient(180deg, #eef4fa, #f7fafd); padding: 80px 0; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { background: var(--white); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); display: flex; flex-direction: column; }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.feature-img { height: 180px; overflow: hidden; position: relative; }
.feature-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.feature-card:hover .feature-img img { transform: scale(1.06); }
.feature-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(13,43,78,.35)); }
.feature-tag { position: absolute; left: 16px; top: 16px; z-index: 2; background: rgba(255,255,255,.9); color: var(--primary); font-size: .78rem; font-weight: 700; padding: 4px 14px; border-radius: 30px; backdrop-filter: blur(6px); }
.feature-body { padding: 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.feature-body h3 { font-size: 1.12rem; font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: 10px; }
.feature-body h3 i { color: var(--accent); font-size: 1rem; }
.feature-body p { color: var(--text-light); font-size: .92rem; line-height: 1.65; }

.tips-section { padding: 80px 0; }
.tips-inner { display: grid; grid-template-columns: .92fr 1.08fr; gap: 56px; align-items: center; }
.tips-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.tips-media img { width: 100%; height: 100%; object-fit: cover; min-height: 380px; }
.tips-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(13,43,78,.45)); }
.tips-media-caption { position: absolute; left: 20px; bottom: 20px; z-index: 2; color: #fff; font-size: .88rem; background: rgba(13,43,78,.55); backdrop-filter: blur(8px); padding: 8px 18px; border-radius: 40px; border: 1px solid rgba(255,255,255,.25); }
.tips-content .section-head { text-align: left; margin-bottom: 28px; }
.tips-list { display: grid; gap: 14px; }
.tip-item { display: flex; gap: 16px; align-items: flex-start; background: var(--white); border: 1px solid var(--border); border-radius: 14px; padding: 18px 20px; transition: var(--transition); }
.tip-item:hover { border-color: rgba(14,165,233,.4); box-shadow: var(--shadow-md); transform: translateX(6px); }
.tip-icon { flex: 0 0 40px; width: 40px; height: 40px; border-radius: 12px; background: var(--accent-soft); color: #0369a1; display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.tip-item h3 { font-size: 1rem; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.tip-item p { font-size: .9rem; color: var(--text-light); line-height: 1.6; }

.faq-section { background: var(--white); padding: 80px 0; }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--bg); border: 1px solid var(--border); border-radius: 16px; margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(14,165,233,.35); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; cursor: pointer; font-weight: 700; color: var(--primary); font-size: 1rem; list-style: none; position: relative; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: var(--accent); transition: var(--transition); flex: 0 0 auto; }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item[open] { background: #fff; box-shadow: var(--shadow-md); }
.faq-answer { padding: 0 24px 22px; color: var(--text-light); font-size: .96rem; line-height: 1.75; border-top: 1px dashed var(--border); margin: 0 24px; padding: 14px 0 20px; }

.cta-section { position: relative; padding: 90px 0; background: linear-gradient(135deg, rgba(13,43,78,.94), rgba(14,165,233,.78)), url('/assets/images/backpic/back-3.png') center / cover no-repeat; color: #fff; text-align: center; }
.cta-inner { max-width: 680px; margin: 0 auto; }
.cta-inner .section-eyebrow { background: rgba(255,255,255,.16); color: #e0f2fe; }
.cta-inner h2 { font-size: clamp(1.9rem, 3.4vw, 2.8rem); font-weight: 900; margin-bottom: 16px; line-height: 1.25; }
.cta-inner p { color: rgba(255,255,255,.85); font-size: 1.05rem; margin-bottom: 34px; }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }
.cta-note { margin-top: 24px; font-size: .85rem; color: rgba(255,255,255,.6); }

.site-footer { background: #0a1c30; color: rgba(255,255,255,.7); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-brand .logo { color: #fff; margin-bottom: 18px; }
.footer-brand p { font-size: .92rem; line-height: 1.75; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 800; margin-bottom: 20px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ''; position: absolute; left: 0; bottom: 0; width: 28px; height: 3px; border-radius: 4px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { font-size: .92rem; color: rgba(255,255,255,.62); transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.footer-col ul a::before { content: '\f105'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: .75rem; color: var(--accent); opacity: .7; }
.footer-col ul a:hover { color: #fff; padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .85rem; color: rgba(255,255,255,.5); }

@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { max-width: 560px; }
  .toc-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .nav-toggle { display: flex; }
  .main-nav { position: fixed; left: 0; right: 0; top: 74px; background: #fff; flex-direction: column; align-items: stretch; padding: 16px 20px 24px; gap: 8px; box-shadow: 0 20px 40px rgba(13,43,78,.12); border-radius: 0 0 20px 20px; transform: translateY(-130%); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 99; }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-link { justify-content: center; padding: 14px; }
  .header-cta .header-btn { display: none; }
  .page-hero { padding: 70px 0 60px; }
  .hero-stats { gap: 12px; }
  .hero-stat { min-width: 110px; padding: 14px 16px; }
  .hero-stat strong { font-size: 1.4rem; }
  .tips-inner { grid-template-columns: 1fr; }
  .tips-media img { min-height: 260px; }
  .faq-item summary { font-size: .95rem; padding: 18px 18px; }
  .faq-answer { margin: 0 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .toc-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; }
  .section-head { margin-bottom: 34px; }
  .section-title { font-size: 1.6rem; }
}